function EcrireCookie(nom, valeur)
{
var argv=EcrireCookie.arguments;
var argc=EcrireCookie.arguments.length;
var expires=(argc > 2) ? argv[2] : null;
var path=(argc > 3) ? argv[3] : null;
var domain=(argc > 4) ? argv[4] : null;
var secure=(argc > 5) ? argv[5] : false;
document.cookie=nom+"="+escape(valeur)+
((expires==null) ? "" : ("; expires="+expires.toGMTString()))+
((path==null) ? "" : ("; path="+path))+
((domain==null) ? "" : ("; domain="+domain))+
((secure==true) ? "; secure" : "");
}
 
function getCookieVal(offset){

	var endstr=document.cookie.indexOf (";", offset);
 	if (endstr==-1) endstr=document.cookie.length;
 	return unescape(document.cookie.substring(offset, endstr));
}
 
function LireCookie(nom){

	var arg=nom+"=";
	var alen=arg.length;
	var clen=document.cookie.length;
	
	var i=0;
	while (i<clen){
		
		var j=i+alen;
		if (document.cookie.substring(i, j)==arg) return getCookieVal(j);
		i=document.cookie.indexOf(" ",i)+1;
		if (i==0) break;
	}
	
 	return null;
}